diff --git a/.github/workflows/gradle_build.yml b/.github/workflows/gradle_build.yml
index da3610f..6fb95b8 100644
--- a/.github/workflows/gradle_build.yml
+++ b/.github/workflows/gradle_build.yml
@@ -21,11 +21,11 @@ jobs:
       - name: Checkout commit
         uses: actions/checkout@v3
 
-      - name: Set up JDK 11
+      - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
-          distribution: 'zulu'
-          java-version: '11'
+          distribution: 'temurin'
+          java-version: '17'
 
       - name: Add gradle.properties
         run: |
diff --git a/.github/workflows/gradle_publish.yml b/.github/workflows/gradle_publish.yml
index 978eb71..acc001a 100644
--- a/.github/workflows/gradle_publish.yml
+++ b/.github/workflows/gradle_publish.yml
@@ -18,11 +18,11 @@ jobs:
       - name: Checkout commit
         uses: actions/checkout@v3
 
-      - name: Set up JDK 11
+      - name: Set up JDK 17
         uses: actions/setup-java@v3
         with:
-          distribution: 'zulu'
-          java-version: '11'
+          distribution: 'temurin'
+          java-version: '17'
 
       - name: Add gradle.properties
         run: |
diff --git a/build.gradle b/build.gradle
index 5f7208d..b1688e1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -25,8 +25,8 @@
  */
 
 buildscript {
-    ext.gradle_version = "7.4.2"
-    ext.kotlin_version = "1.9.0"
+    ext.gradle_version = "8.2.2"
+    ext.kotlin_version = "1.9.22"
 
     repositories {
         google()
@@ -41,7 +41,7 @@ buildscript {
 
 plugins {
     // To generate Proto DataStore
-    id 'com.google.protobuf' version '0.8.19' apply false // Maybe keep in sync with other usages
+    id 'com.google.protobuf' version '0.9.4' apply false // Maybe keep in sync with other usages
 }
 
 ext {
@@ -49,13 +49,12 @@ ext {
     cyfaceEnergySettingsVersion = "0.0.0" // Automatically overwritten by CI
 
     // Cyface dependencies
-    cyfaceUtilsVersion = "4.0.6"
+    cyfaceUtilsVersion = "4.0.7"
 
     // Android SDK versions
     minSdkVersion = 21 // device support
     targetSdkVersion = 34 // behavioral changes, follow migration guide & test the app against this
     compileSdkVersion = 34 // allows newest APIs to be used and to see deprecations, use latest
-    buildToolsVersion = '34.0.0' // optional, if defined, use latest (SDK Manager > SDK Tools)
 
     // Android dependencies
     androidxAnnotationVersion = "1.6.0"
@@ -78,9 +77,9 @@ ext {
     testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
 
     // Java version
-    sourceCompatibility = JavaVersion.VERSION_11
-    targetCompatibility = JavaVersion.VERSION_11
-    kotlinTargetJavaVersion = "11"
+    sourceCompatibility = JavaVersion.VERSION_17
+    targetCompatibility = JavaVersion.VERSION_17
+    kotlinTargetJavaVersion = "17"
 }
 
 allprojects {
diff --git a/energy_settings/build.gradle b/energy_settings/build.gradle
index 43e0b2a..4ad50b4 100644
--- a/energy_settings/build.gradle
+++ b/energy_settings/build.gradle
@@ -31,7 +31,6 @@ apply plugin: 'com.google.protobuf' // For Proto DataStore
 android {
     namespace "de.cyface.energy_settings"
     compileSdkVersion rootProject.ext.compileSdkVersion
-    buildToolsVersion rootProject.ext.buildToolsVersion
 
     defaultConfig {
         minSdkVersion rootProject.ext.minSdkVersion
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index c1962a7..943f0cb 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index e8be595..7fc84be 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.6.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-all.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index aeb74cb..65dcd68 100755
--- a/gradlew
+++ b/gradlew
@@ -85,6 +85,9 @@ done
 APP_BASE_NAME=${0##*/}
 APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
 
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
 # Use the maximum available, or set MAX_FD != -1 to use that value.
 MAX_FD=maximum
 
@@ -141,7 +144,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
     case $MAX_FD in #(
       max*)
         # In POSIX sh, ulimit -H is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC3045 
         MAX_FD=$( ulimit -H -n ) ||
             warn "Could not query maximum file descriptor limit"
     esac
@@ -149,7 +152,7 @@ if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
       '' | soft) :;; #(
       *)
         # In POSIX sh, ulimit -n is undefined. That's why the result is checked to see if it worked.
-        # shellcheck disable=SC3045
+        # shellcheck disable=SC3045 
         ulimit -n "$MAX_FD" ||
             warn "Could not set maximum file descriptor limit to $MAX_FD"
     esac
@@ -194,10 +197,6 @@ if "$cygwin" || "$msys" ; then
     done
 fi
 
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
 # Collect all arguments for the java command;
 #   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
 #     shell script including quotes and variable substitutions, so put them in